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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13388","creator":{"creator":{"@type":"Person","name":"Shu-Ting Zhao"},"@type":"Role"},"keywords":"Natural sciences -> Carbon,Natural sciences -> Stable isotope analyses,Natural sciences -> Nitrogen,Natural sciences -> Ecology,Natural sciences -> Narwhals,Natural sciences -> Wildlife","contactPoint":[{"@type":"Person","name":"Shu-Ting Zhao"},{"@type":"PropertyValue","email":"shuting.zhaost@gmail.com"}],"@type":"Dataset","description":"Monitoring Arctic marine mammals in response to rapid climate change requires reliable longitudinal data. To obtain such data is challenging, but sequential measurements of stable isotopes (SI) from metabolically inert tissues like dentine allow for chronological reconstruction of SI data that can provide insights into whale life history, behaviour, and physiology. This study examined dentine samples from narwhal embedded canines to reconstruct individual SI profiles and assess intra-annual variation in 15N and 13C. The individual 15N and 13C profiles of all 31 narwhals exhibited cyclical oscillations. The majority of 15N and 13C oscillations (>50%) occurred within the annual growth layer groups (GLGs), suggesting seasonal variation. The mean magnitude of SI oscillations per individual ranged from 0.4 to 2.5 for 15N and 0.2 to 1.1 for 13C. Such intra-annual SI oscillations may reflect variability in narwhal ecology related to environmental variation (e.g., seasonal changes in baseline SI and diet associated with narwhal migration) and/or changes in narwhal physiology (e.g., seasonal energetics), highlighting the utility of SI profiles for long-term monitoring of narwhals ecological and physiological responses to a changing Arctic.Narwhal embedded canines were collected by Inuit during subsistence hunts near Pond Inlet and provided to Fisheries and Oceans Canada through a voluntary collaborative sampling program with the Pond Inlet Hunters and Trappers Association. These harvested narwhals belonged to the Baffin Bay narwhal population, which is monitored by DFO for stock assessment. This research adds to our understanding of this population in terms of their vulnerability and variability to the changing Arctic conditions.","dateModified":"2025-02-14","spatialCoverage":{"geo":{"@type":"GeoShape","box":"72.35633 -81.1066 65.421509 -70.965424"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13388","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13388","datePublished":"2025-01-24","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"1982-Jun-2/2017-Aug-13","name":"Stable isotopes (15N and 13C) in dentine growth layer groups (GLGs) of narwhal embedded teeth","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13388"
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13386","creator":{"creator":{"@type":"Person","name":"Eugenie Jacobsen"},"@type":"Role"},"keywords":"Geographic locations -> Labrador Sea,Natural sciences -> Biodiversity,Geographic locations -> Beaufort Sea,Natural sciences -> Fishes,Natural sciences -> Stable isotope analyses,Health sciences and contaminants -> Bioaccumulation,Health sciences and contaminants -> Mercury,Geographic locations -> Amundsen Gulf,Geographic locations -> Nunatsiavut,Geographic locations -> Northwest Passage,Geographic locations -> Canadian Arctic Archipelago,Health sciences and contaminants -> Persistent organic pollutants (POPs),Geographic locations -> Baffin Bay,Natural sciences -> Arctic cod,Health sciences and contaminants -> Diet,Health sciences and contaminants -> DDT,Health sciences and contaminants -> Legacy pesticide","contactPoint":[{"@type":"Person","name":"Eugenie Jacobsen"},{"@type":"PropertyValue","email":"eugenie.jacobsen@mi.mun.ca"}],"@type":"Dataset","description":"The purpose of the research was to determine whether mercury (Hg) and organochlorine pesticides (OCPs) concentrations in fish are determined by their ecology and/or their location. Here we assess the drivers of mercury and organochlorine pesticide concentrations in a subarctic ecosystem to predict how climate-related biogeographic shifts will impact contaminant levels in Arctic ecosystems as boreal species expand their northern range. Ecological variability was assessed using stable isotopes (15N, 13C, and 34S) and location variability was assessed using concentration comparisons among three regions in the Canadian Arctic (i.e. Beaufort Sea, Canadian Arctic Archipelago, Baffin Bay) and the Labrador Sea.","dateModified":"2025-01-29","spatialCoverage":{"geo":{"@type":"GeoShape","box":"79.0 -144.0 53.0 -49.0"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13386","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13386","datePublished":"2025-01-10","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2016-Jun-14/2021-Oct-18","name":"Interspecific differences in mercury and organochlorine pesticides concentrations in Arctic and subarctic fishes (in benthic and pelagic fishes in the Canadian Arctic and Labrador Sea)","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13386"
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13080","creator":{"creator":{"@type":"Person","name":"Heidi Swanson"},"@type":"Role"},"keywords":"Natural sciences -> Hydrology,Natural sciences -> Contaminants,Natural sciences -> Invertebrates,Natural sciences -> Sediments,Natural sciences -> Carbon,Natural sciences -> Environmental impacts,Natural sciences -> Stable isotope analyses,Natural sciences -> Lakes,Natural sciences -> Nitrogen,Natural sciences -> Water chemistry,Natural sciences -> Ecology,Health sciences and contaminants -> Mercury,Natural sciences -> Monitoring,Natural sciences -> Fisheries,Health sciences and contaminants -> Methylmercury,Natural sciences -> Community-based monitoring,Natural sciences -> Stream,Geographic locations -> Northwest Territories,Social sciences, economics and policy -> Strategies,Natural sciences -> Wetland,Natural sciences -> Map layers,Health sciences and contaminants -> Safety","contactPoint":[{"@type":"Person","name":"Heidi Swanson"},{"@type":"PropertyValue","email":"hswanson@uwaterloo.ca"}],"@type":"Dataset","description":"In this project, we are aiming to understand how landscape, lake, and fish ecology explain variation in fish mercury (Hg levels). Our results are identifying critical variables for future cumulative impact monitoring, and will enable more informed predictions of how fish Hg levels in the Dehcho region will respond to continued environmental change. Decision-makers will use our results to develop long-term monitoring strategies, identify lakes that are most vulnerable to future increases in fish Hg levels, refine consumption advisories, and identify lakes with the safest and healthiest sources of food fish. This data set is collected to support several projects supported by Northern Contaminants Program, CIMP 154 (GNWT), and the project titled Northern Water Futures, Objective 2'. Northern Water Futures is a Pillar 3 project under the Global Water Futures Program funded by Canada First Research Excellence Fund","dateModified":"2025-03-03","spatialCoverage":{"geo":{"@type":"GeoShape","box":"63.413929 -123.084138 60.185535 -117.492097"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13080","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13080","datePublished":"2019-04-29","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2018-Aug-1/2027-Sep-30","name":"Understanding and Predicting Mercury in Dehcho Lakes, Northwest Territories","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13080"
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=622","creator":{"creator":{"@type":"Person","name":"Gilles Gauthier"},"@type":"Role"},"keywords":"Geographic locations -> Bylot Island,Natural sciences -> Air temperature,Natural sciences -> Soil temperature,Natural sciences -> Precipitation,Natural sciences -> Relative humidity,Natural sciences -> Snow depth,Natural sciences -> Snow cover,Natural sciences -> Winds,Natural sciences -> Solar radiation","contactPoint":[{"@type":"Person","name":"Gilles Gauthier"},{"@type":"PropertyValue","email":"gilles.gauthier@bio.ulaval.ca"}],"@type":"Dataset","description":"Climate has a strong impact on arctic wildlife species, either in the short term (e.g. due to strong annual variation in weather conditions) or in the long-term (e.g. due to global warming).  In order to better understand theses impacts on wildlife and plants, we recommend the monitoring of a few basic weather variables.  In many areas, climatic stations operated by Environment Canada can provide long-term data on weather but these stations are often located at some distance from our field sites.  Therefore, it is recommended that some weather parameters are also monitored at the field site itself, at least during the field season, to have a record of local weather.  The two most important weather variables to monitor are air temperatures and precipitations.  Moreover, other climatic variables important to biological processes such as thawing degree-days, growing degree-days, and the number of frost-free days can be derived from air temperature data.  In addition, snow depth and snow cover in spring should also be monitored because the timing of snow-melt in spring can have a considerable impact on the annual phenology of species.","dateModified":"2025-01-24","spatialCoverage":{"geo":{"@type":"GeoShape","box":"73.2 -80.0 73.2 -80.0"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=622","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=622","datePublished":"2008-01-18","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"1993-Aug-9/Not Defined","name":"Long-term automated monitoring of year-round climatic parameters on Bylot Island, Nunavut","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN622"
         }
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13335","creator":{"creator":{"@type":"Person","name":"Zou Zou Kuzyk"},"@type":"Role"},"keywords":"Natural sciences -> Mooring,Geographic locations -> Hudson Bay,Natural sciences -> River,Natural sciences -> Water temperature,Natural sciences -> Salinity,Natural sciences -> Circulation,Natural sciences -> Radiation,Geographic locations -> James Bay,Natural sciences -> Rservoirs hydro-lectriques","contactPoint":[{"@type":"Person","name":"Zou Zou Kuzyk"},{"@type":"PropertyValue","email":"zouzou.kuzyk@umanitoba.ca"}],"@type":"Dataset","description":"This study of the oceanography of eastern James Bay relevant to the coastal habitats and eelgrass (Zostera marina) supports the aims of the Coastal Habitat Comprehensive Research Project (CHCRP; see https://www.eeyoucoastalhabitat.ca/introduction/ and the Eeyou Coastal Habitat Project on CanWIN (https://doi.org/10.34992/2enm-0h29.) The CHCRP is a Cree-led research project that seeks to assess coastal marine ecosystem change in Eeyou Istchee with a focus on eelgrass ecosystems and the migratory waterfowl, including Canada geese (Branta canadensis) and Atlantic Brant (Branta bernicla hrota), that rely on the eelgrass habitat for stopovers during fall migrations.  The project represents a collaboration between Cree coastal communities (Chisasibi, Wemindji, Eastmain, and Waskaganish) and a consortium of researchers from universities across Canada. University of Manitoba researchers Jens Ehn and Zou Zou Kuzyk co-led a project focused on the coastal oceanography. As part of this research, we conducted a series of studies of the under-ice winter freshwater plume of the the La Grande River (LGR). The LGR, which discharges at the community of Chisasibi in northeast James Bay, is a large river with flow regulated for hydropower production. Following a series of dams and diversions, the annual average discharge of LGR was approximately doubled and the peak discharge was shifted into winter. Peak discharge of LGR now regularly exceeds 5000 m3/s during winter months, making it the second largest winter flow discharge among pan-Arctic rivers. The discharge creates a substantial under-ice plume beneath the 10-20 km wide landfast ice cover along the northeastern coast of James Bay, Canada. Immobile landfast sea ice that forms along high-latitude coasts during winter blocks direct wind mixing, resulting in a larger spatial extent of under-ice river plumes compared with open water conditions under similar levels of river discharge. Because eelgrass thrives in brackish to salty water and is not tolerant of very low salinity (< 5 psu), the increase in the size of the winter plume with increasing LGR winter discharge has been monitored since the early 1980s. We have conducted detailed studies to examine when, how, and to what extent the winter freshwater plume of LGR affects salinity at nearshore eelgrass beds and to improve understanding of the physical processes affecting the plume's behaviour.","dateModified":"2025-02-19","spatialCoverage":{"geo":{"@type":"GeoShape","box":"58.0 -80.0 51.0 -78.0"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13335","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13335","datePublished":"2023-10-06","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2018-Jan-1/2021-Sep-29","name":"Conductivity-temperature-depth (CTD) and mooring data from eastern James Bay, 2018-2021","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13335"
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13334","creator":{"creator":{"@type":"Person","name":"Zou Zou Kuzyk"},"@type":"Role"},"keywords":"Natural sciences -> Mooring,Natural sciences -> Hydrology,Geographic locations -> Hudson Bay,Natural sciences -> Salinity,Natural sciences -> Circulation,Natural sciences -> CTD (Conductivity, Temperature, Depth),Natural sciences -> Ice,Geographic locations -> James Bay,Natural sciences -> Hydro-Qubec","contactPoint":[{"@type":"Person","name":"Zou Zou Kuzyk"},{"@type":"PropertyValue","email":"zouzou.kuzyk@umanitoba.ca"}],"@type":"Dataset","description":"Properties of the under-ice river plume associated with the regulated La Grande River were studied throughout the winters of 2016 and 2017. River runoff acts as a source of both momentum and buoyancy when it enters saline oceanic water. Initially, the buoyancy of fresh river water is often sufficient to overcome the forces that drive vertical mixing, such that a stratified river plume is formed on the surface. The direction of flow, thickness, and size of a river plume in the coastal domain are determined by external factors, such as coastal geometry, discharge rate, tides, the Coriolis effect, coastal background circulation, and wind-driven mixing. However, there remain few field observations of river plumes under the sea ice. Immobile landfast sea ice that forms along high-latitude coasts during winter blocks direct wind mixing, resulting in a larger spatial extent of under-ice river plumes compared with open water conditions under similar levels of river discharge. Underneath continuous level sea ice, an under-ice plume can spread largely unmixed until it reaches the floe edge, after which the river water presumably mixes quickly with ambient seawater and disperses into the ocean surface layer. A few observational studies in Hudson Bay have included time-series observations of under-ice river plumes but generally the influence of winds and storms on under-ice plume behaviour remains poorly known. This research focuses on the La Grande River (LGR) plume on the northeast coast of James Bay using data collected during the winters of 2016 and 2017. The data follow up on early work in the 1980s and early 1990s when winter discharge from LGR was increased by the first phases of hydroelectric development of LGR.  The purpose of the study was to update our understanding of the size and configuration of the LGR winter plume under present-day discharges that exceed 5000 m3/s during typical winters.","dateModified":"2025-02-19","spatialCoverage":{"geo":{"@type":"GeoShape","box":"55.0 -80.0 53.5 -80.0"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13334","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13334","datePublished":"2023-10-06","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2016-Jan-4/2017-Sep-27","name":"Conductivity-temperature-depth (CTD) and mooring data from La Grande under-ice plume, northeast James Bay, 2016-2017","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13334"
         }
      },
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13323","creator":{"creator":{"@type":"Person","name":"Zou Zou Kuzyk"},"@type":"Role"},"keywords":"Geographic locations -> Hudson Bay,Natural sciences -> Sea ice,Natural sciences -> Ice,Natural sciences -> Ice cores,Northern communities -> Sanikiluaq,Natural sciences -> Landfast ice","contactPoint":[{"@type":"Person","name":"Zou Zou Kuzyk"},{"@type":"PropertyValue","email":"zouzou.kuzyk@umanitoba.ca"}],"@type":"Dataset","description":"The objective of this study is to gather landfast ice data in collaboration with a community-based monitoring program based out of Sanikiluaq, NU. Community members observed differences in the thickness and properties of the ice during some years that they considered possibly related to changes in the properties of the water underlying the ice or changes in currents and circulation.  Previous studies have found that the area south and east of the Belcher Islands has shallow stratification throughout winter because of accumulation of river water originating in James Bay. A shallow subsurface water mass at a depth of ~ 30 m also contains remnant heat from the previous summer, which may affect ice properties at sites of upwelling. The landfast ice data and observations collected at the Belcher Islands comprise part of the PhD thesis research of University of Manitoba student Aura Diaz. Among her research interests is the response of sea ice to changes in high-latitude climate- and marine systems, and the role of sea ice in providing feedbacks to these processes. Her observations of ice and auxiliary parameters (snow, winds, air temperatures, surface water temperature and salinity, etc.) seek to improve understanding of how the environmental factors of the atmosphere (temperature, wind, etc.) and ocean (salinity, circulation, etc.) control sea ice growth and melt, and how the structure and properties of the sea ice are affected. This research helps address major gaps in our understanding of atmosphere-ice-ocean interactions and how changing sea ice feedback processes, in turn, modify these atmospheric and oceanic environmental factors. A more complete understanding of the processes connecting the atmosphere, sea ice and ocean will help improve how landfast ice, especially in areas with significant river water presence in winter, is represented in Earth System models.","dateModified":"2025-02-26","spatialCoverage":{"geo":{"@type":"GeoShape","box":"56.5 -79.4 56.2 -78.8"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13323","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13323","datePublished":"2023-10-05","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2019-Mar-12/2022-May-30","name":"Ice core characteristics from the Belcher Islands and Sanikiluaq, NU","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13323"
         }
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13322","creator":{"creator":{"@type":"Person","name":"Whitney England"},"@type":"Role"},"keywords":"Geographic locations -> Labrador Sea,Geographic locations -> Hudson Bay,Natural sciences -> Microorganisms,Geographic locations -> Beaufort Sea,Natural sciences -> Marine sediments,Geographic locations -> Canada,Geographic locations -> Nunatsiavut,Geographic locations -> Arctic,Geographic locations -> Canadian Arctic Archipelago,Geographic locations -> Baffin Bay,Natural sciences -> Bacteria,Geographic locations -> Hudson Strait,Natural sciences -> Archaea","contactPoint":[{"@type":"Person","name":"Whitney England"},{"@type":"PropertyValue","email":"whitney.england@ucalgary.ca"}],"@type":"Dataset","description":"The Arctic Ocean is warming at twice the rate of other marine ecosystems. Marine microbiomes drive primary productivity and sustain Arctic food webs, are an important indicator of ecosystem health and function, and provide early indications of environmental change. Water, sediment, ice, and brine samples were collected onboard CCGS Amundsen from over 80 locations spanning 8 years to provide a broad geographic sampling of locations throughout the Canadian Arctic. These samples will be analyzed via 16S and shotgun metagenomic sequencing to provide essential baseline information about the microbial communities in the Canadian Arctic. Results will characterize and quantify the Arctic marine microbiome in space and time, integrating results with other ArcticNet oceanographic data. This will be the first-ever large-scale genomic assessment of Canadas Arctic marine ecosystem. Microorganisms are also natures first responders to environmental perturbations, including hydrocarbon-degrading bacteria which can break down oil in this sensitive ecosystem. This is of great interest to the scientific community, policymakers and decision-makers as rapid changes in Arctic ecosystems and accelerating industrial activity pose a greater risk of accidental oil spills. Highlighting the response of the Arctic marine microbiome to oil spills and identifying unique Arctic-specific genes and genomes will guide mitigation efforts in different high-latitude spill scenarios.","dateModified":"2025-02-24","spatialCoverage":{"geo":{"@type":"GeoShape","box":"76.383533 -133.638667 53.789833 -54.693817"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13322","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13322","datePublished":"2023-10-05","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2013-Aug-14/2019-Sep-11","name":"Dynamic microbial populations in Canadas Arctic Ocean are poised to respond to environmental change","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13322"
         }
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13318","creator":{"creator":{"@type":"Person","name":"Zou Zou Kuzyk"},"@type":"Role"},"keywords":"Natural sciences -> Biogeochemistry,Geographic locations -> Hudson Bay,Natural sciences -> Biological productivity,Natural sciences -> Water chemistry,Geographic locations -> Canada,Geographic locations -> James Bay,Natural sciences -> Isotopes","contactPoint":[{"@type":"Person","name":"Zou Zou Kuzyk"},{"@type":"PropertyValue","email":"zouzou.kuzyk@umanitoba.ca"}],"@type":"Dataset","description":"The purpose of this research was to study the influence of altered freshwater discharge on the seasonality of nutrient distributions near La Grande River, northeastern James Bay. In subarctic marine environments, winter is a time when nutrient stocks are replenished through physical and biogeochemical processes, largely setting an upper limit on new primary production for the next growing season. In spring, freshwater-associated nutrient additions from sea ice melt and river inflow modify marine nutrient stocks and influence primary production, especially in coastal areas. In northeastern James Bay (NEJB), Qubec, hydroelectric development of the La Grande River (LGR) has shifted the timing of peak freshwater discharge from spring into winter, producing ten times the natural winter flows. In situ observations of coastal water properties in this area are limited to a handful of studies, none of which simultaneously included nutrients and freshwater tracers to distinguish the influence of river water from sea-ice melt. In this study, we used salinity, oxygen isotope ratio (18O), and nutrient (nitrate, phosphate) data collected from NEJB coastal waters during six campaigns spanning 2016 and 2017 to quantify sea-ice melt and river water content and their influence on nutrient distributions within the LGR plume. Our results show that the LGR is the dominant source of freshwater to coastal waters in both winter and summer and an important source of nitrogen to nitrogen-limited coastal waters. Regulation of the LGR has shifted fluvial nitrate inputs from spring (pre-development) to winter (post-development) producing a mismatch between high surface nitrate stocks available to support primary production now occurring in winter and the growing season, which can begin only after the return of light. In NEJB, the timing and magnitude of primary production, dependent on nutrients in the water column, is expected to have been impacted by altered freshwater input, reducing overall production in local areas and potentially increasing production further downstream with cascading effects on the marine ecosystem.","dateModified":"2025-02-19","spatialCoverage":{"geo":{"@type":"GeoShape","box":"55.0 -80.0 53.0 -78.0"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13318","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13318","datePublished":"2023-10-04","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2016-Jan-26/2017-Sep-28","name":"Water salinity, oxygen isotope, and nutrient data from southeast Hudson Bay and James Bay","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13318"
         }
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      "item":{
"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12713","creator":{"creator":{"legalName":"ArcticNet","@type":"Organization","url":"http://doi.org/10.5884/12713"},"@type":"Role"},"keywords":"Natural sciences -> Conductivity,Natural sciences -> Nitrates,Natural sciences -> Oxygen,Geographic locations -> Arctic Ocean,Natural sciences -> Salinity,Natural sciences -> Temperature,Natural sciences -> CTD (Conductivity, Temperature, Depth),Geographic locations -> Northwest Passage,Natural sciences -> CTD profiles,Geographic locations -> Baffin Bay,Natural sciences -> Pressure,Natural sciences -> Photosynthetically available radiation (PAR),Natural sciences -> Fluorescence,Natural sciences -> Photosynthesis,Natural sciences -> Transmittance","contactPoint":[{"legalName":"ArcticNet","@type":"Organization"},{"@type":"PropertyValue","email":"pdc@arcticnet.ulaval.ca"}],"@type":"Dataset","description":"This research aims to collect and provide core physical and chemical oceanographic data for all Arctic research teams onboard CCGS Amundsen and other interested scientists.","dateModified":"2025-02-14","spatialCoverage":{"geo":{"@type":"GeoShape","box":"81.2 -172.5 47.4 -48.4589"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12713","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12713","datePublished":"2016-10-20","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2014-Jul-15/2023-Oct-24","name":"CTD data collected by the CCGS Amundsen in the Canadian Arctic","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN12713"
         }
      },
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13376","creator":{"creator":{"@type":"Person","name":"Viv Maclean"},"@type":"Role"},"keywords":"Geographic locations -> Ontario,Geographic locations -> Canada,Geographic locations -> Europe,Geographic locations -> Alaska,Geographic locations -> Finland","contactPoint":[{"@type":"Person","name":"Viv Maclean"},{"@type":"PropertyValue","email":"vjmaclean@uwaterloo.ca"}],"@type":"Dataset","description":"test entry for the user input menufurther test of update function 14 augservice unavailable error on a users record so testing this Jan 2025","dateModified":"2025-01-29","spatialCoverage":{"geo":{"@type":"GeoShape","box":"43.4797222 -80.5411111 43.4797222 -80.5411111"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13376","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13376","datePublished":"2024-08-08","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2024-Aug-8/2024-Aug-9","name":"PDC test entry Aug 8 2024 - retest in jan 2025 to investigate a user error","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13376"
         }
      },
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13387","creator":{"creator":{"@type":"Person","name":"Tim Byers"},"@type":"Role"},"keywords":"Natural sciences -> Invertebrates,Natural sciences -> Zooplankton,Natural sciences -> Zoobenthos,Natural sciences -> Taxonomy,Natural sciences -> Crustaceans","contactPoint":[{"@type":"Person","name":"Tim Byers"},{"@type":"PropertyValue","email":"byerses@escape.ca"}],"@type":"Dataset","description":"To catalogue the marine invertebrates inhabiting the south end of the Hell Gate - Cardigan Strait polynya. This catalogue was used in determining diet selection by northern fulmar and black guillemot colonies on the eastern tip of Colin Archer Peninsula. A more contemporary use of this catalogue is to provide a taxonomic baseline of the invertebrates inhabiting these waters.","dateModified":"2025-03-05","spatialCoverage":{"geo":{"@type":"GeoShape","box":"76.29 -89.5 76.17 -89.12"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13387","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13387","datePublished":"2025-01-17","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"1980-Jun-13/1984-Jul-28","name":"Nearshore Marine Invertebrates off Colin Archer Peninsula, western Jones Sound, Nunavut","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN13387"
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"identifier":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12053","creator":{"creator":{"@type":"Person","name":"Zou Zou Kuzyk"},"@type":"Role"},"keywords":"Natural sciences -> Organic carbon,Natural sciences -> Nutrients,Geographic locations -> Labrador,Geographic locations -> Lake Melville,Natural sciences -> Sediment accumulation rate,Natural sciences -> Sediment cores,Natural sciences -> 137-Cs,Natural sciences -> 210-Pb,Natural sciences -> Radiochronology","contactPoint":[{"@type":"Person","name":"Zou Zou Kuzyk"},{"@type":"PropertyValue","email":"zouzou.kuzyk@umanitoba.ca"}],"@type":"Dataset","description":"Our main objectives were to investigate the sediment and organic matter deposition to Lake Melville and to quantify inputs and outputs through the system by developing contemporary budgets of sediment and particulate organic matter. Through the analysis of both natural (Pb-210, &#948;13C, organic carbon (OC) content) and anthropogenically derived Cs-137 in sediment cores, an understanding of previous environmental conditions can be achieved. Knowledge of these processes is essential to identify fundamental processes involved in the transfer of material from the watershed to the open ocean and to interpret the most sensitive processes that are likely to change in the future as a result of hydrological or climatic changes. Particulate matter collected from major tributaries and throughout Lake Melville and coastal waters in June 2013 and October 2014 were analysed for OC content and &#948;13C. This data contributes to the understanding and quantification of terrigenous and marine derived organic matter to the system.","dateModified":"2025-02-27","spatialCoverage":{"geo":{"@type":"GeoShape","box":"54.3 -60.33 53.38 -58.07"},"@type":"Place"},"distribution":{"contentURL":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12053","@type":"DataDownload"},"url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12053","datePublished":"2015-01-21","license":"https://www.polardata.ca/pdcinput/public/termsofuse","temporalCoverage":"2013-Jun-9/2014-Oct-23","name":"Sedimentation and organic carbon data from Lake Melville, Labrador","publisher":{"@type":"Organization","url":"polardata.ca"},"@id":"CCIN12053"
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   ]
}